Results 41 to 50 of about 149 (141)

CO Survey of High-z Radio Galaxies, Revisited with the Atacama Large Millimeter/submillimeter Array: Jet–Cloud Alignments and Synchrotron Brightening by Molecular Gas in the Circumgalactic Environment

open access: yesThe Astrophysical Journal, 2023
Powerful radio sources associated with supermassive black holes are among the most luminous objects in the universe, and are frequently recognized both as cosmological probes and active constituents in the evolution of galaxies.
Bjorn H. C. Emonts   +8 more
doaj   +1 more source

Core Revelations: The Star Formation and Active Galactic Nucleus Connection at the Heart of NGC 7469

open access: yesThe Astrophysical Journal
We investigate the star formation–active galactic nucleus (AGN) connection in the Seyfert 1 NGC 7469 using James Webb Space Telescope mid-infrared spectroscopic integral field unit (IFU) data.
Léa M. Feuillet   +6 more
doaj   +1 more source

Quasars and Ultraluminous Infrared Galaxies: At the Limit? [PDF]

open access: yesThe Astrophysical Journal, 1999
9 pages, includes 2 eps figs, accepted to ...
McLeod, K. K.   +2 more
openaire   +3 more sources

Search for tidal dwarf galaxy candidates in a sample of ultraluminous infrared galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2007
(ABRIDGED) Star-forming small galaxies made out of collisional debris have been found in a variety of merging systems. So far only a few of them are known in ULIRGs although they show clear signs of interactions. Whether external star formation may take place in such objects is an open question. The aim of this paper is to identify and characterise the
Monreal-Ibero, Ana   +3 more
openaire   +3 more sources

Infrared emission from z ∼ 6.5 quasar host galaxies: a direct estimate of dust physical properties

open access: yesAstronomy & Astrophysics
Quasars at the dawn of cosmic time (z > 6) are fundamental probes for investigating the early coevolution of supermassive black holes and their host galaxy.
Costa M.   +8 more
doaj   +1 more source

FAR-INFRARED FINE-STRUCTURE LINE DIAGNOSTICS OF ULTRALUMINOUS INFRARED GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2013
We present Herschel observations of six fine-structure lines in 25 Ultraluminous Infrared Galaxies at z<0.27. The lines, [O III]52, [N III]57, [O I]63, [N II]122, [O I]145, and [C II]158, are mostly single gaussians with widths <600 km s-1 and luminosities of 10^7 - 10^9 Solar.
Farrah, D.   +18 more
openaire   +5 more sources

A JWST MIRI LRS Survey of 37 Massive Star-forming Galaxies and Active Galactic Nuclei at Cosmic Noon: Overview and First Results

open access: yesThe Astrophysical Journal
We present a large spectroscopic survey with JWST’s Mid-Infrared Instrument Low Resolution Spectrometer (LRS) targeting 37 infrared-bright galaxies between z  = 0.65–2.46 with infrared luminosities $\mathrm{log}{L}_{{\rm{IR}}}/{L}_{\odot }\gt 11.5$ and $\
Jed McKinney   +19 more
doaj   +1 more source

The Rest-frame Submillimeter Spectrum of High-redshift, Dusty, Star-forming Galaxies from the SPT-SZ Survey

open access: yesThe Astrophysical Journal, 2023
We present the average rest-frame spectrum of the final catalog of dusty star-forming galaxies (DSFGs) selected from the South Pole Telescope's SPT-SZ survey and measured with Band 3 of the Atacama Large Millimeter/submillimeter Array.
C. Reuter   +18 more
doaj   +1 more source

Spectropolarimetry of the ultraluminous infrared galaxy IRAS 110548–1131 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1993
Copyright Royal Astronomical Society [Full text of this article is not available in the UHRA]
S. Young   +4 more
openaire   +1 more source

PASSAGES: The Wide-ranging, Extreme Intrinsic Properties of Planck-selected, Lensed Dusty Star-forming Galaxies

open access: yesThe Astrophysical Journal
The PASSAGES (Planck All-Sky Survey to Analyze Gravitationally-lensed Extreme Starbursts) collaboration has recently defined a sample of 30 gravitationally lensed dusty star-forming galaxies (DSFGs). These rare, submillimeter-selected objects enable high-
Patrick S. Kamieneski   +13 more
doaj   +1 more source

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